The Wirblewind has broken endless vulching. Because of the Wirble, you need to bring bombs and lots of them to an enemy base, somewhat higher than tree-top level. This emphasis on dropping lots of high-explosives to the enemy and the now distasteful nature of flying below 6000 feet over disputed territory makes things a least a tad more realistic. It follows that intercepting bombers and jabos will actually make more of a difference than it did before. And an effective defense tool for the ground units against jabos will make them less sitting targets than they were before, making the ground war more viable. All this will, IMO, will help put the air war aspect of in the MA in the proper context and make it more realistic (Or less unrealistic, if you will.)
I admit the Wirbel will be inevitiably used for dweebery as well as good ends at times. But I've only personally seen a runway camped by enemy wirbels once, and at least they had to drive there to vulch, instead of flying. I'd say the good effects are more pronounced than the bad.